<template>
  <div>
           <button @click="getList">123</button>
           <div>{{user}}</div>
  </div>
</template>

<script>
export default {
data() {
  return {
         list:[{name:'张三',address:[{dart:"四川省",city:[{cityList:"成都市",county:[{countyList:"清凤时代城"}]}]}]}]
  }
},
methods:{
   getList(){
       console.log([...this.list])
   }
},
computed:{
  user(){
    return `${this.list.map(item=>item.name)} 
    ${this.list.map(item=>item.address.map(xx=>xx.city))}` 
    this.list.map(item=>item.address.map(xx=>xx.city.map(cc=>cc.county.map(bb=>bb.countyList))))
 
  }

},
mounted(){
  // this.user()  
},
}
</script>

<style>

</style>>